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3 Sheets-Sheet 1.

H. DAVEY. HORIZONTAL WATER-PRESSURE PUMP.

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Patented Feb. 15, 1876.

3 SheetsShe et Z.

H. DAVEY. HORIZONTAL WATER-PRESSURE PUMP. 11 ,173,59 Patented Feb. 16,1876.

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Speciticatioih partof Letters Paitent No.

' ler-D EY OE EEDSJE rGLAND- Tadl'Lwhom-itmayconcern: i, J kBeifiknOWn thatLHENRYDAVEY, of Sun Foundry, Leeds-,: in the county of f'York, 13mg- Tland, eligi heer, have inyented an Improved ulHorizfontal 'teraEresjsure Rump yandjdo w hereby .declar that the iollowingfdescription, v -;taken in connectio fith -gth'ei accompanying sheets Tof Ldraw g hereinafter referred to,

forms'a fullandexa specificationof thesa'rne," l ewllelill Thayeset to" lltttlll'fi andgprinif i rl 'fl my d hr rem fiby hichi y' invention mayflb I 'ofiasimilar class, p claim. and desire ,t answer; is to} say";

with 1 such 'parts'as team-pumps cannot be;satelygaarranged at a My invention relates to' pumping apparatus of "VFigure '1 represents aside view; Fig.;2-,'a plan, and Fig-3 a longitudinal section of the .whole apparatus; {Fig. 1 is ajportion' of Fig: 1 enlargedto'show' more:distinctly the means of working the slide, andthe remaining figuresrepresent,to.fan enlarged scale, the valve box for, alternating the'action, Figs. at and 5 being vertical sections on-the' lines V V W W, respectively, and Figs. 6, 7, and 8 being sectional plans on the lines X X Y Y Z Z respectively. V i 1i a The apparatus consists of two horizontal pumps arranged one on each-side of a central valve-box, 0, Each of the two pumps consists of a fixed barrel, F and F, provided at its outer end with supply and discharge valves G G and H11, of ordinary construction. A hollow plunger, P P, isfitted to Work through packing in the mouth of each of the barrels workover a fixedtubular ram, It 1%, these two rams projecting each from one side of the valvedistinguish ed trbmf 'iothers eib e fi is Pet 1 often happens that in: mines levelsufficiently low forsuctionwithout beingf tinue to act,'=iiotwithstandin g their im e i n-a this kind, applicableunder; the circumstances fother cases where'a command ofi'w ater-p'res s-f RF, and is itself providedwith packing, to

l box G. The two plungersl? P are connected 1 [together"by tie-boltsS, sothatthey move to 1 u a :gether, the one making itsinstroke'while'the" n:

otherm'akes' its outstroke. The valve-box 0 is divided by horizontalpartitions into three compartments in' its height. The npper comunder I pressure for working the pump,a'ndj The middle compartment is alsodivided by a those; parts working through packing-s in the upper' l'nostand' lowest'chambers of the valveboxyrespectively The valves seat bythe tition of the valve-box. The two lowest chainhers under. the valves V and V communicate,

which is worked, as I will presently describe, in such a mannerthat these chambers are al; ternately subjected to and relieved from the the chamber V being, by the passage 5, put always under the same condition as V and V being, by the passage s ,'put always under the same condition as V*. V

1 will suppose that the pipe .8 is charged with the water under pressure While 8 is open to discharge; then the pressure acting on the under sides of the valves V and V raises them from their seats, while the other valves V and V are closed down on their ,seats. By the opening of the valve V. water under pressure supplied by the pipe I can flow through the hollow ram It into the plunger P, while by the opening of the valve V Water from the other partment is divided by a verticaL-partition is into "two valve-chamherm the one of which communicates with a pipe,l,supplying water flthe.other,with a'pipe,f0, byfwhich the water i i is discharged afterit" has worked the pump;

vertical pa'rti'tition (transverseto that in' the percompartment) into'tw'o chambers, the I one'ofjwhiehcommunicates,bythehollow ram 1R, with thegone pump-plungerP,and the=oth= .7 er,,bythehollowraili R, \vitht-he'other plunlger l", f In'jtheflowest compartment of the avalvegboxarmour cavities, of \Vhicli eachidi-V agonally situated pair communicates bydiag v v iv Vfllijtted-in the valve-box=O,1each I of thesevalves being ofcylindricaltor n', larger in its ku pper 'than inits lowcrpart, and having shoulders pr their enlarged upper parts on i seatings provided in the upper horizontal parf by small pipes s s ywith ports ofa slide,'s,

pressure of the water which works the pumps,

t the ,pump is caused to make its reciprocating strokes.

are closed, and the movement of the plunger P can flow back through thehollow Q ram R, andescape by the outlet 0. The plan-- ger P being thus subjected to pressure while P is relieved from pressure, the two plungers are caused to make their stroke in the one direction together, the one P drawing in water by the suction-valves G into the ba'rrel'F, and the other P forcing waterout oithe barrel F by the discharge-valve H; If now the' The slide 8 is of the ordinary D kind,

manding two ports leading, respectively,to the pipes, s s and a central discharge-port,

and working within a jacket supplied with. wa-

ter under pressure. The slide-rod is connect ed to a lever, T, to WhlUh is connected a tappet-rod, b", havin g on it stops suitably adjusted to the stroke of the pump, so 'that aclip, U,

,proiectingfromone of the. tie-bolts S, and embracing the tappet-rod S in approaching each end of its stroke, bears against one or other of the stops, and moves the ta'ppet-rod and slide. When, for example,the pump is approaching the end of its stroke to" the left hand it moves the slide toward'the left, there-' I p by uncoveringthe right-hand port fo'r theadmission of water to the pipe 8 from the jacket, and putting the left-hand port'and pipe 8 in communication with the discharge. By this action the valves V are raised and V' V pump is reversed, as already explained.

Having thus described the'natnre of my invention, and the best means 1 know of carryingthe same-into practical efi'ect, Ihereby declare that I make no general claim to the application of hydraulic pressure-as amotive power'for Working pumps, but-I (slaim- 1. Ahorizontalwater-pressure pump con;

sisting ot" two barrels, F F, havinghollow plungers P P tied together, and fitted to work in -the barrels F F over tubular rams R R,- communioating, respectively, with a central valve-box, G, substantially as herein described.

2. The valve-box 0, having chambers communicz'iting, respectively, with a supply-inlet, I, and a discharge-outlet, O, and with the two hollow rams R R, and containing four valves,

V V V3V, arranged to operate in diagonal pairs, so as alternately to put each of the rams R E into communication with the inlet and r with the outlet, substantially as herein described. r I

3, The combination of the valve-box G with the slide 8, and its ports and communicating pipes s sf, arranged to operate in such manner that according as the slide 8 is moved to the rightor to the, left theone pair of the valves V Y V V is subjected to pressure while the other pair is relieved from I 4 7 pressure, substantially as herein described.

4. The combination of the barrels F F with their supply and discharge valves G G H H, the plungers P P" with, their tie-rods S,the

hollow rams R R, the cen'tralvalve-box G with its valvesV V V V, the slide 8, and its pipes s s-"fl and'thctappet-rod I, and lover U, forniing a horizontal water-pressure pump, constructed and operating substantially'as herein described. I

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses this nineteenth day of October, 1875.

- HENRY DAVEY. Witnesses CHARLES D. ABEL, JOHN IMRAY. 

